Three-line hybrid rape seed production method

Abstract

The invention belongs to the technical field of hybrid seed breeding and discloses a three-line hybrid rape seed production method. The method integrates the following processes: selection method of seed production soil, method of planting mode, mechanical intertillage management method, and regulation method of flowering time, so that parameters including optimum seeding date, seed usage amount,planting mode, planting density, planting ratio, fertilization level, altitude influence, height of bolt pickling, flowering time regulation, fertilization method, prevention and treatment of diseasesand pests, and prevention and control of weeds, thus producing seeds of the three-line hybrid rape. The method has typical demonstration effect of establishing a safe high-oleic acid hybrid rape seedproduction base and producing high-quality high-oleic acid hybrid rape seeds. The hybrid variety can reach 150 kg/Mu in yield and can maintain purity to 90% through a seed purity preservation technology, which represent the leading level in the province and advanced level in our country of high-oleic acid hybrid rape seed production.

Description

technical field [0001] The invention belongs to the technical field of hybrid breeding, in particular to a three-line hybrid rape seed production method. [0002] The present invention relates to a method for selecting seed production sites for hybrid seed production of three-line rapeseed, a method for a planting model, a method for mechanical intertillage management, a method for regulating flowering period, and the like. Background technique [0003] Three-line hybrid rapeseed: it consists of "sterile line", "maintainer line" and "restorer line". The seeds produced by crossing "line" and "restorer line" are hybrid seeds. [0004] Prior Art Implementations Most Similar to the Invention, Prior Art Disadvantages: [0005] One is that the sterile line for three-line seed production mainly comes from the "Polima" rape discovered by Chinese rape breeders in the 1970s. The sterile character of this sterile line is affected by the climate. When the sterile line enters reproduct...

AI Technical Summary

Problems solved by technology

The three-line hybrid rapeseed seed production technology of the present invention uses the experimental demonstration base as the platform and agricultural scientific and technological personnel as the main body to carry out the best sowing date, the number of seeds used, the precision sowing, the proportion of planting density, the application of machinery, the level of fertilization, Experimental analy

Images